"Das Rad ließ er auf dem Hinterhof-Hartplatz."
Denn: ein hardcourt/ hard court ist etwas mehr als ein asphaltierter Hof! Die Beschaffenheit des hardcourt wird so beschrieben, er ist aus:
"rigid materials such as asphalt or concrete.... covered with acrylic resins to seal the surface and mark the playing lines, while providing some cushioning."https://en.m.wikipedia.org/wiki/Hardcourt#:~:...
Es steht ja extra nicht "asphalt yard" or "paved yard".
Leo erklärt, refering to Wikipedia:
"A yard will typically consist mostly of lawn or play area. The yard in front of a house is referred to as a front yard, the area at the rear is known as a backyard. Backyards are generally more private and are thus a more common location for recreation. Yard size varies with population density. In urban centres, many houses have very small or even no yards at all. In the suburbs, yards are generally much larger and have room for such amenities as a patio, a playplace for children, or a swimming pool.
In British English, these areas would usually be described as a garden, similarly subdivided into a front garden and a back garden, although paved areas may be called a yard, but more usually a patio. In modern Britain, the term yard is often used for depots and land adjacent to or among workplace buildings, as well as uncultivated land adjoining a building..."Siehe auch: yard - der Garten